If you want to run 120/240 volts using fat wires you can get lugs from
that you would weld onto the ends of aluminum wire. This would allow you to run say 1,500 KCM aluminum using 3x500 KCM or 2x750 KCM. You would need to use a tungsten-inert-gas welder that is powered by an engine. The lug series are WFC for 1 wire per lug and WFC-2 for 2 wires per lug. You can get lugs as small as 3/0 aluminum and as large as 3,500 KCM. The maximum size aluminum wire for 600 volts is 1,000 KCM. Anything over 500 KCM is a real %#@*& to install not that you need a forklift truck to pull even 4/0 into a conduit.
Have you also considered a combination of wind and solar power? Also, a conventional generator would work for occasional use and if it has wheels you can use it during a blackout.
However, transformers also have voltage drop particularly when motors start. To be effective at 3,000 feet of distance you would have to step up to 2,400 volts or better yet 4,800 volts or 7,200 volts.
An oil distribution transformer of this size has 2% impedance so you have 4% impedance plus the voltage drop of the wire plus the voltage drop in your supply system. To get reasonable voltage drop youn would need to buy 2 50 KVA padmount transformers that step up to say 4,800 volts and bury some 5 KV or 15 KV cable. You would have 3 transformers in series counting the local distribution transformer.
For what that costs you could have your utility run a primary line extension and put in a second meter. You would only need to pay them for a 15 KVA or 25 KVA transformer depending on how much load you are actually running. This is the only solution that I would consider.
Also, the newer electronic meters have enough sensitivity to low amperage loads that some utilites have been able to do primary metering for residences that are far from the road or just have a large lot. So, there is a way for you to do this with 1 meter.
All of these solutions depend on how much load you want to run and how many kilowatthours you will use.